Raspberry Plant Named &#39;R15-21-5&#39;

ABSTRACT

The present invention provides a new and distinct raspberry plant designated as ‘R15-21-5’. The new raspberry cultivar is distinguished from other cultivars by its combination of traits which include very early production on primocanes, branching habit, large light red colored fruit, trapezoidal shaped and fruits suitable for fresh consumption.

Latin name of the genus and species: Rubus idaeus L.

Varietal denomination: ‘R15-21-5’.

CROSS REFERENCE TO RELATED APPLICATIONS

This application relates to European Plant Breeders' Rights Application No. 201701980, filed on Mar. 01, 2018,. which is herein entirely incorporated by reference for all purposes.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct primocane raspberry variety designated as ‘R15-21-5’.

‘R15-21-5’ was obtained from seed produced by bees pollination of seedlings from Universidad Católica de Chile, according to a collaboration agreement dated Feb. 20, 2014 and was first fruited in Gibraleón (Huelva, Spain) growing fields in 2015. From the seedling and during testing, the plant was designated ‘R15-21-5’.

This new variety was asexually propagated by root cuttings in a controlled environment at Gibraleón, Huelva, Spain. Asexual propagules from the original source have been tested in Cartaya, Moguer and Palos de la Frontera (Huelva, Spain) growing fields and to a limited extent. The properties of this variety were found to be transmissible by such asexual reproduction. This cultivar is stable and reproduces true to type in successive generations of asexual reproduction.

SUMMARY OF THE INVENTION

This invention concerns a new and distinct cultivar of primocane raspberry variety. The varietal denomination of the new variety is ‘R15-21-5’. The new raspberry cultivar ‘R15-21-5’ is distinguished from other cultivars by its combination of traits which include very high production from October to January on primocanes and from April to June on floricanes; semi-upright branched plant; the vigour of the plant is medium-high, the fruit color is light red, trapezoidal-shaped, firm fruit and large size. The cultivar shows a very early cropping season production in protected culture.

BRIEF DESCRIPTION OF THE DRAWING

The accompanying colour photographs and traits show typical specimens of the new cultivar at various stages of development as nearly true as it is possible to make in colour reproductions. The pictures were taken during 2018 in Huelva, Spain.

FIG. 1 shows plant habit.

FIG. 2 shows current season's cane.

FIG. 3 shows the upperside leaves.

FIG. 4 shows the downside leaves.

FIG. 5 shows the upperside flowers.

FIG. 6 shows the downside flowers.

FIG. 7 shows the whole fruit on plant.

FIG. 8 shows the fruit in longitudinal cross-section.

DETAILED DESCRIPTION OF THE INVENTION

This invention relates to a new and distinctive primocane raspberry cultivar named ‘R15-21-5’. This cultivars is primarily adapted to the climate and growing conditions of the South of Spain (Huelva); Nevertheless considering that is a primocane cultivar, it can be planted in any place of the world that provides the necessary temperatures, this happen in some places of United States as the central coast of California where the nearby Pacific Ocean provides the needed humidity and moderate day temperatures.

‘R15-21-5’ is a semi-upright, medium-high vigorous plant with some branches that produces large fruit size, light red colored and trapezoidal shape.

Fruits are suitable for fresh consumption with excellent quality and high firmness. Fruit production season is much earlier than other cultivars when is grown in protected culture, this allows large quantities of fruits in winter and early spring. Fruit is easily removed from its receptacle, with adequate width of the cavity, and easily visible on branches.

‘R15-21-5’ have not been noted to be sensitive to any pest in Huelva (Spain). Specifically, it's relatively tolerant to aphids and spider mites.

Plants of ‘R15-21-5’ are slightly susceptible to powdery mildew (Podosphaera aphanis) when greenhouse grown.

‘R15-21-5’ can be asexually propagated by root suckers, root cuttings and other know methods of propagating raspberry plants. No off-type plants have been observed in the history of asexual propagation of this cultivar by either method.

The results showed below describe production, weight per fruit and Brix degrees of the variety ‘R15-21-5’ from October 2016 to January 2017 on primocanes (Table 1) and from April 2017 to June 2017 on floricanes (Table 2). The results come from three trials located in Gibraleón, Palos de la Frontera and Bonares (Huelva, Spain). Each trial was a randomized complete block design with three repetitions and 6 plants per plot. Root cuttings was planting on Jul. 17, 2016 and was cultivated until May 31, 2017. It was cultivated under standard conditions of raspberry cultivation in Huelva, Spain.

TABLE 1 Variety Location Cultivation method Yield brix weight R15-21-5 Gibraleón Hydroponic 1699 9.5 6.6 R15-21-5 Palos Ftra Hydroponic 1826 8.0 6.3 R15-21-5 Bonares Raised bed 1518 8.6 5.7 Table 1. fruit production, weight per fruit and Brix degrees of the variety ‘R15-21-5’ from October 2016 to January 2017 on primocanes. Each value is the result of the average of three repetitions of 6 plants, yield, total commercial yield in grams per plant; weight, weight in grams per first quality fruits; brix, Brix degrees.

TABLE 2 Variety Location Cultivation method Yield brix weight R15-21-5 Gibraleón Hydroponic 1317 9.3 7.5 R15-21-5 Palos Ftra Hydroponic 1665 8.1 7.1 R15-21-5 Bonares Raised bed 1021 7.6 6.3 Table 2. fruit production, weight per fruit and Brix degrees of the variety ‘R15-21-5’ from April 2017 to June 2017 on floricanes. Each value is the result of the average of three repetitions of 6 plants. yield, total commercial yield in grams per plant; weight, weight in grams per first quality fruits; brix, Brix degrees.

The following traits in combination distinguish raspberry variety ‘R15-21-5’ from known raspberry varieties. It is based in UPOV terminology and color references are made to The Royal Horticultural Society Colour Chart, 2015 Edition, except where general terms of ordinary dictionary significance are used.

Following observations describe primocane variety with fruit production from October 2016 to January 2017 on primocanes and from end of April 2017 to June 2017 on floricanes, in 30-liter container in a greenhouse located in Huelva (Spain). Root cuttings was used for planting in July 2016.

General

Characteristics R15-21-5 Main bearing type Both, on previous year's cane and on current year's cane Time of cane emergence Early Time of beginning of flowering Very early on current season's cane Time of beginning of fruit Very early ripening on current year's cane Length of fruiting period on Long current year's cane

Root

Characteristics R15-21-5 Habit Dense Thickness Medium to thin Color RHS, 164A-164B

Plant

Characteristics R15-21-5 Habit Semi-upright Vigor Medium to high Number of current Many season's canes Very young shoot

Characteristics R15-21-5 Anthocyanin coloration of Absent apex during rapid growth Color RHS, 144B-144C Observations made when the shoots are about 15 cm long Current season's cane

Characteristics R15-21-5 Bloom Medium Anthocyanin coloration Absent or very weak Length of internode Medium, 5.0 to 7.0 cm Length of vegetative bud Medium, 0.5 to 1.0 cm Length Long, 190 to 200 cm Diameter 1.28 to 1.36 cm Color RHS, 143B-144A Observations made just before harvest, made in the middle third of the current season's cane, when the cane is about 1 m to 1.50 m long. Lateral branch

Characteristics R15-21-5 Habit Upright Bloom Medium Anthocyanin coloration Absent Length of internode Medium, 5.0 to 7.0 cm Length Long, 68 to 110 cm Diameter 0.68 to 0.87 cm Color RHS, 144B-144C Observations made just before harvest, made in the middle third of the current season's cane, when the cane is about 1 m to 1.50 m long.

Spines

Characteristics R15-21-5 Presence Present Density Sparse, 4.39/cm² Size of base Small, 0.10 to 0.20 cm Length Short, 0.20 to 0.30 cm Shape Deltoid Color RHS, 184A Observations on spines made in the middle third of the current season's cane, when the cane is about 1 m to 1.50 m long.

Petiole

Characteristics R15-21-5 Spines density Very few, 5 to 8 Length 5.5 to 8.5 cm Color RHS, 144B-144C Diameter 0.30 to 0.37 cm Observations made on fully developed leaves from the middle third of the cane.

Stipule

Characteristics R15-21-5 Number per leaf 2 Length 0.5 to 0.8 cm Width <0.1 cm Shape Upright Color RHS, 144B Observations made on fully developed leaves from the middle third of the cane.

Leaf

Characteristics R15-21-5 Green color of upper side RHS, NN137B-NN137C Predominant number of leaflets 3 Profile of leaflets in cross section Concave Rugosity Medium Relative position of lateral leaflets Touching Length Long, 26.5 to 28.0 cm Width Broad, 28.0 to 30.5 cm Shape Unipinnate, Imparipinhate Shape of tip Acuminate Shape of base Rounded Shape of margin Serrate Length of terminal leaflet Long, 15.5 to 18.5 cm Width of terminal leaflet Broad, 14.5 to 16.5 cm Length of lateral leaflet Long, 14.5 to 15.3 cm Width of lateral leaflet Broad, 9.2 to 10.0 cm Observations made on fully developed leaves from the middle third of the cane.

Pedicel

Characteristics R15-21-5 Number of spines on pedicel Medium, 15 to 30 Diameter 0.11 to 0.13 cm Color RHS, 143C-144B Observations made during the autumn fruiting period

Peduncles

Characteristic R15-21-5 Presence of Absent anthocyanin coloration Diameter 0.18 to 0.25 cm Color RHS, 143C-144B Observations made during the autumn fruiting period

Petal

Characteristics R15-21-5 Number per flower 5 to 7 Length 0.5 to 0.6 cm Width 0.3 to 0.4 cm Shape Elliptic Apex shape Obcordate Base shape Acute Margin shape Regular Color RHS, NN155A-NN155B Observations made during the autumn fruiting period

Sepal

Characteristics R15-21-5 N° per flower 5 Length 1.12 to 1.20 cm Width 0.5 to 0.7 cm Shape Deltoid Apex shape Aristate Margin shape Regular Color RHS, 143B-143C Observations made during the autumn fruiting period

Flower

Characteristics R15-21-5 Size Large Diameter 1.9 to 2.7 cm Observations made during the autumn fruiting period Reproductive organs

Characteristics R15-21-5 Number of pistils/flower 126 to 142 Pistil length 0.3 to 0.5 cm Ovary shape Oval Ovary color RHS, 144D Style length 0.3 to 0.4 cm Style color RHS, 155A-155B Number of stamens/flower 102 to 116 Stamen length 0.4 to 0.6 cm Stamen shape Oval Stamen color RHS, 155A-155B Pollen color RHS, 155B Observations made during the autumn fruiting period

Fruit

Characteristics R15-21-5 Length Long, 2.6 to 3.0 cm Width Broad, 2.5 to 2.8 cm Ratio length/width Large General shape Trapezoidal in lateral view Size of single drupe Large, 0.3 to 0.4 cm Color RHS, 46B to 46C Glossiness Strong Firmness Firm Adherence to plug Very weak Number of drupelets 124 to 148 Diameter hollow center 0.9 to 1.1 cm Observations made on fruit picked during the second and third harvest of the autumn fruiting period. 

The invention claimed is:
 1. A new and distinct cultivar of raspberry plant named ‘R15-21-5’ as described and shown herein. 